/**
* Checks whether the cache entry is "fresh enough" to satisfy the Request.
*
* @param Symfony\Components\HttpFoundation\Request $request A Request instance
* @param Symfony\Components\HttpFoundation\Response $entry A Response instance
*
* @return Boolean true if the cache entry if fresh enough, false otherwise
*/
protected function isFreshEnough(Request $request, Response $entry)
{
if (!$entry->isFresh()) {
return $this->lock($request, $entry);
}
if ($this->options['allow_revalidate'] && null !== ($maxAge = $request->headers->getCacheControl()->getMaxAge())) {
return $maxAge > 0 && $maxAge >= $entry->getAge();
}
return true;
}